FN378-4 IEC 320-C14 Power Entry Connector Module

Part Overview

The FN378-4 is an AC power entry connector module manufactured by Schaffner EMC Inc., designed as a receptacle with male blades for IEC 320-C14 panel mount applications. This filtered power entry module integrates EMI/RFI commercial-grade filtering with a 4A current rating and accommodates a fuse for circuit protection. The product carries a "Not For New Designs" status, making identification of equivalent substitute parts essential for ongoing production and maintenance applications where this connector type is specified.

Substiute Parts

FN378-4-..

Schaffner EMC Inc.In Stock: 932FN378-4-.. Datasheet

Current PartRFQ

B84773A0004A000

EPCOS - TDK ElectronicsIn Stock: 994B84773A0004A000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN378-4 is determined by strict alignment of the following critical parameters:

• Connector Style: Must be IEC 320-C14
• Connector Type: Must be Receptacle, Male Blades - Module
• Number of Positions: Must be 3
• Filter Type: Must be Filtered (EMI, RFI) - Commercial
• Current Rating - Filter: Must be 4A
• Mounting Type: Must be Panel Mount, Flange
• Termination: Must be Quick Connect
• Fuse Accommodation: Must support fuse installation

The substitute part B84773A0004A000 meets all these criteria, establishing functional and electrical equivalence for direct replacement in applications where the FN378-4 is currently specified.

Parameter Comparison

Engineering Selection Recommendations

The B84773A0004A000 substitute part is qualified for direct replacement of the FN378-4 based on electrical and mechanical parameter equivalence. The substitute maintains identical connector style, type, filtering characteristics, and current rating specifications. Both parts achieve ROHS3 compliance and carry recognized safety certifications (UL, CSA/cUL, VDE/ENEC).

The primary distinction is product lifecycle status: the FN378-4 carries "Not For New Designs" designation, while B84773A0004A000 maintains "Active" status. This makes the substitute the appropriate choice for ongoing production requirements and new applications requiring IEC 320-C14 filtered power entry modules with 4A filtering capacity.

Frequently Asked Questions (FAQ)

Q: What makes B84773A0004A000 a valid substitute for FN378-4?

A: Both parts share identical specifications for connector style (IEC 320-C14), connector type (Receptacle, Male Blades - Module), number of positions (3), filter type (Filtered EMI/RFI - Commercial), current rating (4A), mounting configuration (Panel Mount, Flange), and termination method (Quick Connect). These parameters define functional equivalence for power entry applications.

Q: Are there differences in termination specifications between these parts?

A: The FN378-4 specifies Quick Connect termination without dimensional detail. The B84773A0004A000 specifies Quick Connect - 0.250" (6.3mm), providing explicit terminal pin sizing. Both use the same termination technology and are compatible with standard 0.250" quick connect receptacles.

Q: Does the substitute part support fuse installation?

A: Yes. The B84773A0004A000 includes a fuse holder, maintaining the fuse accommodation capability of the original FN378-4 design. Fuses are not included with either part and must be sourced separately.

Q: What is the significance of the product status difference?

A: The FN378-4 "Not For New Designs" status indicates Schaffner has discontinued active development and recommends alternatives for new applications. The B84773A0004A000 "Active" status confirms EPCOS-TDK Electronics continues manufacturing and supporting this equivalent design, ensuring long-term availability and supply chain stability.

Q: Are both parts certified for the same regulatory standards?

A: Both parts carry UL certification. The FN378-4 includes CSA and VDE approvals, while B84773A0004A000 includes cUL (Canadian UL) and ENEC (European Norms) approvals. These represent equivalent regional certification pathways for North American and European markets respectively.